7460f52498
The vflip quirk is better checked at probe time as it's only needed once. Also add an extra reset at init time to resolve a suspend to ram regression. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
844 lines
19 KiB
C
844 lines
19 KiB
C
/*
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* Driver for the ov9650 sensor
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*
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* Copyright (C) 2008 Erik Andrén
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* Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
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* Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
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*
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* Portions of code to USB interface and ALi driver software,
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* Copyright (c) 2006 Willem Duinker
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* v4l2 interface modeled after the V4L2 driver
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* for SN9C10x PC Camera Controllers
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#include "m5602_ov9650.h"
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/* Vertically and horizontally flips the image if matched, needed for machines
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where the sensor is mounted upside down */
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static
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const
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struct dmi_system_id ov9650_flip_dmi_table[] = {
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{
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.ident = "ASUS A6VC",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "A6VC")
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}
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},
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{
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.ident = "ASUS A6VM",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "A6VM")
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}
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},
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{
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.ident = "ASUS A6JC",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "A6JC")
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}
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},
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{
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.ident = "ASUS A6Ja",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "A6J")
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}
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},
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{
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.ident = "ASUS A6Kt",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "A6Kt")
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}
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},
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{
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.ident = "Alienware Aurora m9700",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "alienware"),
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DMI_MATCH(DMI_PRODUCT_NAME, "Aurora m9700")
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}
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},
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{}
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};
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const static struct ctrl ov9650_ctrls[] = {
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#define EXPOSURE_IDX 0
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{
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{
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.id = V4L2_CID_EXPOSURE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "exposure",
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.minimum = 0x00,
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.maximum = 0x1ff,
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.step = 0x4,
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.default_value = EXPOSURE_DEFAULT,
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.flags = V4L2_CTRL_FLAG_SLIDER
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},
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.set = ov9650_set_exposure,
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.get = ov9650_get_exposure
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},
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#define GAIN_IDX 1
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{
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{
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.id = V4L2_CID_GAIN,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "gain",
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.minimum = 0x00,
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.maximum = 0x3ff,
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.step = 0x1,
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.default_value = GAIN_DEFAULT,
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.flags = V4L2_CTRL_FLAG_SLIDER
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},
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.set = ov9650_set_gain,
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.get = ov9650_get_gain
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},
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#define RED_BALANCE_IDX 2
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{
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{
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "red balance",
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.minimum = 0x00,
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.maximum = 0xff,
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.step = 0x1,
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.default_value = RED_GAIN_DEFAULT,
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.flags = V4L2_CTRL_FLAG_SLIDER
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},
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.set = ov9650_set_red_balance,
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.get = ov9650_get_red_balance
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},
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#define BLUE_BALANCE_IDX 3
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{
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{
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "blue balance",
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.minimum = 0x00,
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.maximum = 0xff,
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.step = 0x1,
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.default_value = BLUE_GAIN_DEFAULT,
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.flags = V4L2_CTRL_FLAG_SLIDER
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},
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.set = ov9650_set_blue_balance,
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.get = ov9650_get_blue_balance
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},
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#define HFLIP_IDX 4
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{
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{
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.id = V4L2_CID_HFLIP,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "horizontal flip",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0
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},
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.set = ov9650_set_hflip,
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.get = ov9650_get_hflip
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},
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#define VFLIP_IDX 5
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{
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{
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.id = V4L2_CID_VFLIP,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "vertical flip",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0
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},
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.set = ov9650_set_vflip,
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.get = ov9650_get_vflip
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},
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#define AUTO_WHITE_BALANCE_IDX 6
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{
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{
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.id = V4L2_CID_AUTO_WHITE_BALANCE,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "auto white balance",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 1
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},
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.set = ov9650_set_auto_white_balance,
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.get = ov9650_get_auto_white_balance
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},
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#define AUTO_GAIN_CTRL_IDX 7
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{
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{
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.id = V4L2_CID_AUTOGAIN,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "auto gain control",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 1
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},
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.set = ov9650_set_auto_gain,
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.get = ov9650_get_auto_gain
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}
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};
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static struct v4l2_pix_format ov9650_modes[] = {
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{
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176,
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144,
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V4L2_PIX_FMT_SBGGR8,
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V4L2_FIELD_NONE,
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.sizeimage =
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176 * 144,
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.bytesperline = 176,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 9
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}, {
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320,
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240,
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V4L2_PIX_FMT_SBGGR8,
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V4L2_FIELD_NONE,
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.sizeimage =
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320 * 240,
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.bytesperline = 320,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 8
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}, {
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352,
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288,
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V4L2_PIX_FMT_SBGGR8,
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V4L2_FIELD_NONE,
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.sizeimage =
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352 * 288,
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.bytesperline = 352,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 9
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}, {
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640,
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480,
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V4L2_PIX_FMT_SBGGR8,
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V4L2_FIELD_NONE,
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.sizeimage =
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640 * 480,
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.bytesperline = 640,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 9
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}
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};
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static void ov9650_dump_registers(struct sd *sd);
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int ov9650_probe(struct sd *sd)
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{
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int err = 0;
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u8 prod_id = 0, ver_id = 0, i;
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s32 *sensor_settings;
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if (force_sensor) {
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if (force_sensor == OV9650_SENSOR) {
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info("Forcing an %s sensor", ov9650.name);
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goto sensor_found;
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}
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/* If we want to force another sensor,
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don't try to probe this one */
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return -ENODEV;
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}
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info("Probing for an ov9650 sensor");
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/* Run the pre-init before probing the sensor */
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for (i = 0; i < ARRAY_SIZE(preinit_ov9650) && !err; i++) {
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u8 data = preinit_ov9650[i][2];
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if (preinit_ov9650[i][0] == SENSOR)
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err = m5602_write_sensor(sd,
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preinit_ov9650[i][1], &data, 1);
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else
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err = m5602_write_bridge(sd,
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preinit_ov9650[i][1], data);
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}
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if (err < 0)
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return err;
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if (m5602_read_sensor(sd, OV9650_PID, &prod_id, 1))
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return -ENODEV;
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if (m5602_read_sensor(sd, OV9650_VER, &ver_id, 1))
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return -ENODEV;
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if ((prod_id == 0x96) && (ver_id == 0x52)) {
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info("Detected an ov9650 sensor");
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goto sensor_found;
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}
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return -ENODEV;
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sensor_found:
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sensor_settings = kmalloc(
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ARRAY_SIZE(ov9650_ctrls) * sizeof(s32), GFP_KERNEL);
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if (!sensor_settings)
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return -ENOMEM;
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sd->gspca_dev.cam.cam_mode = ov9650_modes;
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sd->gspca_dev.cam.nmodes = ARRAY_SIZE(ov9650_modes);
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sd->desc->ctrls = ov9650_ctrls;
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sd->desc->nctrls = ARRAY_SIZE(ov9650_ctrls);
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for (i = 0; i < ARRAY_SIZE(ov9650_ctrls); i++)
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sensor_settings[i] = ov9650_ctrls[i].qctrl.default_value;
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sd->sensor_priv = sensor_settings;
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if (dmi_check_system(ov9650_flip_dmi_table) && !err) {
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info("vflip quirk active");
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sensor_settings[VFLIP_IDX] = 1;
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}
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return 0;
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}
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int ov9650_init(struct sd *sd)
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{
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int i, err = 0;
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u8 data;
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s32 *sensor_settings = sd->sensor_priv;
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if (dump_sensor)
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ov9650_dump_registers(sd);
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for (i = 0; i < ARRAY_SIZE(init_ov9650) && !err; i++) {
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data = init_ov9650[i][2];
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if (init_ov9650[i][0] == SENSOR)
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err = m5602_write_sensor(sd, init_ov9650[i][1],
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&data, 1);
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else
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err = m5602_write_bridge(sd, init_ov9650[i][1], data);
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}
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err = ov9650_set_exposure(&sd->gspca_dev, sensor_settings[EXPOSURE_IDX]);
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if (err < 0)
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return err;
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err = ov9650_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
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if (err < 0)
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return err;
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err = ov9650_set_red_balance(&sd->gspca_dev, sensor_settings[RED_BALANCE_IDX]);
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if (err < 0)
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return err;
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err = ov9650_set_blue_balance(&sd->gspca_dev, sensor_settings[BLUE_BALANCE_IDX]);
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if (err < 0)
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return err;
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err = ov9650_set_hflip(&sd->gspca_dev, sensor_settings[HFLIP_IDX]);
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if (err < 0)
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return err;
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err = ov9650_set_vflip(&sd->gspca_dev, sensor_settings[VFLIP_IDX]);
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if (err < 0)
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return err;
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err = ov9650_set_auto_white_balance(&sd->gspca_dev, sensor_settings[AUTO_WHITE_BALANCE_IDX]);
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if (err < 0)
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return err;
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err = ov9650_set_auto_gain(&sd->gspca_dev, sensor_settings[AUTO_GAIN_CTRL_IDX]);
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return err;
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}
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int ov9650_start(struct sd *sd)
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{
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u8 data;
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int i, err = 0;
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struct cam *cam = &sd->gspca_dev.cam;
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s32 *sensor_settings = sd->sensor_priv;
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int width = cam->cam_mode[sd->gspca_dev.curr_mode].width;
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int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
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int ver_offs = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
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int hor_offs = OV9650_LEFT_OFFSET;
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if (sensor_settings[VFLIP_IDX])
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ver_offs--;
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if (width <= 320)
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hor_offs /= 2;
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if (err < 0)
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return err;
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/* Synthesize the vsync/hsync setup */
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for (i = 0; i < ARRAY_SIZE(res_init_ov9650) && !err; i++) {
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if (res_init_ov9650[i][0] == BRIDGE)
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err = m5602_write_bridge(sd, res_init_ov9650[i][1],
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res_init_ov9650[i][2]);
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else if (res_init_ov9650[i][0] == SENSOR) {
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u8 data = res_init_ov9650[i][2];
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err = m5602_write_sensor(sd,
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res_init_ov9650[i][1], &data, 1);
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}
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}
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA,
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((ver_offs >> 8) & 0xff));
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (ver_offs & 0xff));
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));
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if (err < 0)
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return err;
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for (i = 0; i < 2 && !err; i++)
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err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
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(hor_offs >> 8) & 0xff);
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, hor_offs & 0xff);
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
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((width + hor_offs) >> 8) & 0xff);
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if (err < 0)
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return err;
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err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
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((width + hor_offs) & 0xff));
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if (err < 0)
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return err;
|
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switch (width) {
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case 640:
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PDEBUG(D_V4L2, "Configuring camera for VGA mode");
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data = OV9650_VGA_SELECT | OV9650_RGB_SELECT |
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OV9650_RAW_RGB_SELECT;
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err = m5602_write_sensor(sd, OV9650_COM7, &data, 1);
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break;
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case 352:
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PDEBUG(D_V4L2, "Configuring camera for CIF mode");
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data = OV9650_CIF_SELECT | OV9650_RGB_SELECT |
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OV9650_RAW_RGB_SELECT;
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err = m5602_write_sensor(sd, OV9650_COM7, &data, 1);
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break;
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case 320:
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PDEBUG(D_V4L2, "Configuring camera for QVGA mode");
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data = OV9650_QVGA_SELECT | OV9650_RGB_SELECT |
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OV9650_RAW_RGB_SELECT;
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err = m5602_write_sensor(sd, OV9650_COM7, &data, 1);
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break;
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case 176:
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PDEBUG(D_V4L2, "Configuring camera for QCIF mode");
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data = OV9650_QCIF_SELECT | OV9650_RGB_SELECT |
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OV9650_RAW_RGB_SELECT;
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err = m5602_write_sensor(sd, OV9650_COM7, &data, 1);
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break;
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}
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return err;
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}
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|
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int ov9650_stop(struct sd *sd)
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{
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u8 data = OV9650_SOFT_SLEEP | OV9650_OUTPUT_DRIVE_2X;
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return m5602_write_sensor(sd, OV9650_COM2, &data, 1);
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}
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|
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int ov9650_power_down(struct sd *sd)
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{
|
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int i, err = 0;
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for (i = 0; i < ARRAY_SIZE(power_down_ov9650) && !err; i++) {
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u8 data = power_down_ov9650[i][2];
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if (power_down_ov9650[i][0] == SENSOR)
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err = m5602_write_sensor(sd,
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power_down_ov9650[i][1], &data, 1);
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else
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err = m5602_write_bridge(sd, power_down_ov9650[i][1],
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data);
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}
|
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|
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return err;
|
|
}
|
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|
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void ov9650_disconnect(struct sd *sd)
|
|
{
|
|
ov9650_stop(sd);
|
|
ov9650_power_down(sd);
|
|
|
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sd->sensor = NULL;
|
|
|
|
kfree(sd->sensor_priv);
|
|
}
|
|
|
|
int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
*val = sensor_settings[EXPOSURE_IDX];
|
|
PDEBUG(D_V4L2, "Read exposure %d", *val);
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
u8 i2c_data;
|
|
int err;
|
|
|
|
PDEBUG(D_V4L2, "Set exposure to %d", val);
|
|
|
|
sensor_settings[EXPOSURE_IDX] = val;
|
|
|
|
/* The 6 MSBs */
|
|
i2c_data = (val >> 10) & 0x3f;
|
|
err = m5602_write_sensor(sd, OV9650_AECHM,
|
|
&i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* The 8 middle bits */
|
|
i2c_data = (val >> 2) & 0xff;
|
|
err = m5602_write_sensor(sd, OV9650_AECH,
|
|
&i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* The 2 LSBs */
|
|
i2c_data = val & 0x03;
|
|
err = m5602_write_sensor(sd, OV9650_COM1, &i2c_data, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
int ov9650_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
*val = sensor_settings[GAIN_IDX];
|
|
PDEBUG(D_V4L2, "Read gain %d", *val);
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
int err;
|
|
u8 i2c_data;
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
PDEBUG(D_V4L2, "Setting gain to %d", val);
|
|
|
|
sensor_settings[GAIN_IDX] = val;
|
|
|
|
/* The 2 MSB */
|
|
/* Read the OV9650_VREF register first to avoid
|
|
corrupting the VREF high and low bits */
|
|
err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Mask away all uninteresting bits */
|
|
i2c_data = ((val & 0x0300) >> 2) |
|
|
(i2c_data & 0x3F);
|
|
err = m5602_write_sensor(sd, OV9650_VREF, &i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* The 8 LSBs */
|
|
i2c_data = val & 0xff;
|
|
err = m5602_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
|
|
return err;
|
|
}
|
|
|
|
int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
*val = sensor_settings[RED_BALANCE_IDX];
|
|
PDEBUG(D_V4L2, "Read red gain %d", *val);
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
int err;
|
|
u8 i2c_data;
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
PDEBUG(D_V4L2, "Set red gain to %d", val);
|
|
|
|
sensor_settings[RED_BALANCE_IDX] = val;
|
|
|
|
i2c_data = val & 0xff;
|
|
err = m5602_write_sensor(sd, OV9650_RED, &i2c_data, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
*val = sensor_settings[BLUE_BALANCE_IDX];
|
|
PDEBUG(D_V4L2, "Read blue gain %d", *val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
int err;
|
|
u8 i2c_data;
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
PDEBUG(D_V4L2, "Set blue gain to %d", val);
|
|
|
|
sensor_settings[BLUE_BALANCE_IDX] = val;
|
|
|
|
i2c_data = val & 0xff;
|
|
err = m5602_write_sensor(sd, OV9650_BLUE, &i2c_data, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
*val = sensor_settings[HFLIP_IDX];
|
|
PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
int err;
|
|
u8 i2c_data;
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
|
|
|
|
sensor_settings[HFLIP_IDX] = val;
|
|
err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
i2c_data = ((i2c_data & 0xdf) | ((val & 0x01) << 5));
|
|
|
|
err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
*val = sensor_settings[VFLIP_IDX];
|
|
PDEBUG(D_V4L2, "Read vertical flip %d", *val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
int err;
|
|
u8 i2c_data;
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
PDEBUG(D_V4L2, "Set vertical flip to %d", val);
|
|
|
|
sensor_settings[VFLIP_IDX] = val;
|
|
err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
i2c_data = ((i2c_data & 0xef) | ((val & 0x01) << 4));
|
|
|
|
err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (gspca_dev->streaming)
|
|
err = ov9650_start(sd);
|
|
|
|
return err;
|
|
}
|
|
|
|
int ov9650_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
*val = sensor_settings[GAIN_IDX];
|
|
PDEBUG(D_V4L2, "Read gain %d", *val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
int err;
|
|
u8 i2c_data;
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
PDEBUG(D_V4L2, "Set gain to %d", val);
|
|
|
|
sensor_settings[GAIN_IDX] = val;
|
|
|
|
/* Read the OV9650_VREF register first to avoid
|
|
corrupting the VREF high and low bits */
|
|
err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Mask away all uninteresting bits */
|
|
i2c_data = ((val & 0x0300) >> 2) | (i2c_data & 0x3F);
|
|
err = m5602_write_sensor(sd, OV9650_VREF, &i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* The 8 LSBs */
|
|
i2c_data = val & 0xff;
|
|
err = m5602_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
*val = sensor_settings[AUTO_WHITE_BALANCE_IDX];
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
int err;
|
|
u8 i2c_data;
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
PDEBUG(D_V4L2, "Set auto white balance to %d", val);
|
|
|
|
sensor_settings[AUTO_WHITE_BALANCE_IDX] = val;
|
|
err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1));
|
|
err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
*val = sensor_settings[AUTO_GAIN_CTRL_IDX];
|
|
PDEBUG(D_V4L2, "Read auto gain control %d", *val);
|
|
return 0;
|
|
}
|
|
|
|
int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
int err;
|
|
u8 i2c_data;
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
s32 *sensor_settings = sd->sensor_priv;
|
|
|
|
PDEBUG(D_V4L2, "Set auto gain control to %d", val);
|
|
|
|
sensor_settings[AUTO_GAIN_CTRL_IDX] = val;
|
|
err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2));
|
|
err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void ov9650_dump_registers(struct sd *sd)
|
|
{
|
|
int address;
|
|
info("Dumping the ov9650 register state");
|
|
for (address = 0; address < 0xa9; address++) {
|
|
u8 value;
|
|
m5602_read_sensor(sd, address, &value, 1);
|
|
info("register 0x%x contains 0x%x",
|
|
address, value);
|
|
}
|
|
|
|
info("ov9650 register state dump complete");
|
|
|
|
info("Probing for which registers that are read/write");
|
|
for (address = 0; address < 0xff; address++) {
|
|
u8 old_value, ctrl_value;
|
|
u8 test_value[2] = {0xff, 0xff};
|
|
|
|
m5602_read_sensor(sd, address, &old_value, 1);
|
|
m5602_write_sensor(sd, address, test_value, 1);
|
|
m5602_read_sensor(sd, address, &ctrl_value, 1);
|
|
|
|
if (ctrl_value == test_value[0])
|
|
info("register 0x%x is writeable", address);
|
|
else
|
|
info("register 0x%x is read only", address);
|
|
|
|
/* Restore original value */
|
|
m5602_write_sensor(sd, address, &old_value, 1);
|
|
}
|
|
}
|